Chelsea go into Sunday's match at Southampton still unbeaten in the Premier League, however Match of the Day pundit Mark Lawrenson believes that run is going to end at St Mary's.

The Blues have not lost a game since the Community Shield in all competitions and have conceded just five goals so far in the league, however the former Liverpool man is convinced that the defensive partnership of David Luiz and Antonio Rudiger is still not solid.

The Brazilian and German have been the defensive duo in the league for the Blues, but despite their growing partnership Lawrenson is still not convinced.